Multiple Study of Electroaccpuncture in ARDS

Inclusion Criteria: * Meet the diagnostic criteria of the Surviving Sepsis Campaign: Updated International Guidelines for the Treatment of Sepsis and Septic Shock 2021 * Meet the diagnostic criteria of the European Society of Critical Care Medicine (ESICM) Guidelines for Acute Respiratory Distress Syndrome: Definition, Phenotype and Respiratory Support Strategies * Age \>18 years * Expected duration of mechanical ventilation\>48 hours * Expected ICU stay of more than 7 days * Signed informed consent. Exclusion Criteria: * Participated in other clinical trials * Pregnant, lactating or miscarriage * Patients with disseminated tumors or tumors receiving chemotherapy and other special treatments * Alcohol abuse * Severe cardiovascular, brain, liver, kidney, psychiatric diseases, diabetes, multiple system atrophy, cauda equina injury or myelopathy * Systolic blood pressure \< 90mmHg within 2 hours before the start of the study * Severe burns or severe skin diseases * Pacemaker placement, metal allergy or severe needle sickness * Abnormal coagulation function